Large-diameter long-distance horizontal directional drilling puller

Abstract

The utility model relates to the technical field of pipeline laying, in particular to a large-diameter long-distance horizontal directional drilling pull head which comprises a pull pipe barrel, the head portion of the pull pipe barrel is of an arc-shaped closed structure, a penetrating connecting lug is welded to the head portion, and a pipeline is arranged on the inner side of the pull pipe barrel in a sleeved mode. A reinforcing assembly arranged on the pipeline in a sleeving mode is installed at the tail of the pipe pulling barrel, and a connecting assembly forming a fixing structure with one end of the pipeline is installed in the pipe pulling barrel. The connecting assembly comprises a sealing disc installed in the pipe pulling barrel through a second bolt. According to the large-diameter long-distance horizontal directional drilling pull head, under the action of the sealing disc, the sealing disc makes contact with one end of a pipeline and seals the pipeline, muddy water entering the pipeline can be reduced, meanwhile, the connecting column can be clamped into the connecting hole of the pipeline so as to achieve dragging connection of the pipeline, and compared with the prior art, the large-diameter long-distance horizontal directional drilling pull head has the advantages of being simple in construction, low in cost and the like. And the sealing performance is good, and the laying efficiency of the pipeline can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline laying technology, specifically a large-diameter, long-distance horizontal directional drilling rig. Background Technology

[0002] A auger is a tool used in pipeline laying and maintenance. It is typically attached to one end of the pipeline to be laid or pulled, serving functions such as traction and guidance. Horizontal directional drilling augers are commonly used in horizontal directional drilling operations to lay underground utility pipelines without excavating the surface. Currently, existing augers generally connect to the pipeline in two ways: one is to directly weld the pipeline to the auger, which requires cutting off the welded portion of the pipeline after construction, resulting in cumbersome construction; the other is to use a screw to directly penetrate the auger and connect them, but this structure lacks a tight seal, easily allowing mud and water to enter the pipeline, affecting subsequent use. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a large-diameter, long-distance horizontal directional drilling auger, which solves the technical problems of cumbersome construction and poor sealing of existing drilling augers when connecting to pipelines.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a large-diameter long-distance horizontal directional drilling auger, including a auger tube, the head of the auger tube is an arc-shaped closed structure, and a through connecting lug is welded at the head position. A pipe is sleeved on the inner side of the auger tube, a reinforcing component sleeved on the pipe is installed at the tail of the auger tube, and a connecting component that forms a fixed structure with one end of the pipe is installed inside the auger tube.

[0005] The connecting assembly includes a sealing disc that is bolted to the inside of the tube. A motor is mounted on the side wall of the sealing disc. A rotating shaft that is rotatably connected to the sealing disc is fixed on the output shaft of the motor. A turntable is fixed on the rotating shaft. Multiple oblique holes are opened at the outer edge of the turntable. Fixing pins are slidably arranged in the oblique holes. A connecting column is movably connected to the turntable through the oblique holes and the fixing pins. The connecting column is movably connected to the inside of the sealing disc.

[0006] Preferably, a reinforcing steel plate is welded to the inner side of the tube head, and the reinforcing steel plate is welded to the inner side of the connecting ear, and the reinforcing steel plate and the connecting ear form a cross structure.

[0007] Preferably, the reinforcement assembly includes two reinforcement rings that are bolted to the tail end of the pipe. The inner side of the reinforcement ring is provided with an inner flange, which is fitted into an annular groove opened on the outer wall of the pipe.

[0008] Preferably, the inner side of the pipe end is provided with a plurality of connection holes adapted to the connecting post.

[0009] Preferably, the inner side of the pipe end is provided with a guide groove corresponding to the position of the connection hole.

[0010] Preferably, the connecting ear has a protrusion, and a pull hole is provided at the position of the protrusion.

[0011] By employing the above technical solution, this utility model provides a large-diameter, long-distance horizontal directional drilling rig, which has at least the following beneficial effects:

[0012] 1. This large-diameter, long-distance horizontal directional drilling auger, through the setting of connecting components, allows one end of the pipe to be inserted into the pipe-pulling cylinder. Under the action of the sealing disc, the sealing disc contacts and seals one end of the pipe, which can reduce the entry of mud and water into the pipe. At the same time, the connecting column can be inserted into the connecting hole of the pipe to realize the drag connection of the pipe. Compared with the existing technology, it has the advantages of simple construction and good sealing performance, which can greatly improve the efficiency of pipeline laying.

[0013] 2. This large-diameter, long-distance horizontal directional drilling auger, by setting up a reinforcement component, can further improve the connection strength between the auger and the pipe under the action of the reinforcement ring, so as to avoid the problem of pipe breakage during the auger process, and can also further improve the sealing performance of the auger and the pipe, reducing the ingress of mud and water. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled reinforcement component of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the connecting component of this utility model;

[0019] Figure 5 This is a schematic diagram of the turntable and a single connecting column of this utility model.

[0020] Figure label:

[0021] 1. Pipe tube; 2. Connecting lug; 3. Reinforcing steel plate; 4. Pipe; 401. Annular groove; 402. Connecting hole; 403. Guide groove; 5. Reinforcing component; 501. Reinforcing ring; 5011. Inner flange; 502. Bolt 1; 6. Connecting component; 601. Sealing plate; 602. Motor; 603. Rotating shaft; 604. Turntable; 6041. Inclined hole; 605. Fixing pin; 606. Connecting column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Horizontal directional drilling rigs are construction machines used to lay various underground pipelines without excavating the ground surface. They are widely used in the construction of pipelines for water supply, electricity, telecommunications, natural gas, coal gas, and oil, and are suitable for sandy soil, clay, and gravel terrain. Horizontal directional drilling technology is a new construction technology that combines directional drilling technology from the petroleum industry with traditional pipeline construction methods. It has advantages such as fast construction speed, high construction accuracy, and low cost.

[0024] Due to the technical shortcomings of existing technologies, such as cumbersome construction and poor sealing, please refer to... Figures 1-5 This embodiment provides a large-diameter, long-distance horizontal directional drilling auger, which, compared with the prior art, has the advantages of simple construction and good sealing performance, and can greatly improve the efficiency of pipeline laying. The auger includes a pipe-pulling cylinder 1, the head of which is an arc-shaped closed structure, and a through connecting lug 2 is welded to the head. A pipe 4 is sleeved on the inner side of the pipe-pulling cylinder 1, and a reinforcing component 5 is installed on the tail of the pipe-pulling cylinder 1 and sleeved on the pipe 4. A connecting component 6 is installed inside the pipe-pulling cylinder 1 and forms a fixed structure with one end of the pipe 4. In use, the diameter of the pipe 4 should be slightly smaller than the inner diameter of the pipe-pulling cylinder 1 so that the pipe 4 can be easily inserted into the pipe-pulling cylinder 1. After one end of the pipe 4 contacts the connecting component 6, the connecting component 6 can be used to form a connection between the pipe-pulling cylinder 1 and the pipe 4. At this time, the tail of the directional drill can be moved by pulling the entire pipe-pulling cylinder 1 with a steel wire rope.

[0025] To address the technical issues of cumbersome construction and poor sealing when connecting the existing drill bit to pipe 4, please refer to... Figure 2 , Figure 4 and Figure 5The connecting assembly 6 includes a sealing disc 601 bolted to the inside of the tube 1. A motor 602 is mounted on the side wall of the sealing disc 601. A rotating shaft 603, rotatably connected to the output shaft of the motor 602, is fixed to the rotating shaft 603. A turntable 604 is fixed to the rotating shaft 603. Multiple oblique holes 6041 are formed at the outer edge of the turntable 604. A fixing pin 605 is slidably disposed in the oblique holes 6041. A connecting post 606 is movably connected to the turntable 604 through the oblique holes 6041 and the fixing pin 605. The 6 is movably connected to the inner side of the sealing disc 601; when one end of the pipe 4 contacts the sealing disc 601, the sealing disc 601 seals one end of the pipe 4. At the same time, the motor 602 drives the rotating shaft 603 to rotate, and the rotating shaft 603 drives the turntable 604 to rotate. The turntable 604, through the oblique hole 6041 and the fixing pin 605, can simultaneously drive multiple connecting posts 606 to extend outward. After one end of the connecting post 606 extends into the connecting hole 402, a connection to the pipe 4 can be formed, which has the advantages of simple and fast connection.

[0026] During the pipe pulling process, the tensile force is applied to the welding position between the connecting lug 2 and the pipe pulling cylinder 1. After long-term use, the connection position is prone to breakage, which affects the normal progress of construction. To address this issue, a reinforcing steel plate 3 is welded to the inner side of the head of the pipe pulling cylinder 1. The reinforcing steel plate 3 is welded to the inner side of the connecting lug 2, and the reinforcing steel plate 3 and the connecting lug 2 form a cross structure. The connection position between the connecting lug 2 and the pipe pulling cylinder 1 is reinforced by the reinforcing steel plate 3, enabling the connecting lug 2 to withstand higher tensile forces.

[0027] Regarding the technical issues of poor connection strength and sealing between the existing drill bit and pipe 4, please refer to... Figure 3 The reinforcing component 5 includes two reinforcing rings 501 installed at the tail of the pipe-pulling cylinder 1 by bolts 502. The inner side of the reinforcing ring 501 is provided with an inner flange 5011, which is fitted into an annular groove 401 opened on the outer wall of the pipe 4. Under the action of the reinforcing rings 501, the connection strength between the pipe-pulling cylinder 1 and the pipe 4 can be further improved to avoid the problem of pipe 4 breaking during the pipe-pulling process. It can also further improve the sealing performance of the pipe-pulling cylinder 1 and the pipe 4 and reduce the ingress of mud and water.

[0028] Furthermore, multiple connection holes 402 adapted to the connecting post 606 are provided on the inner side of the end of the pipe 4; the positions of the connection holes 402 can be drilled on the pipe 4 before installation, so that after installation, the connecting post 606 can be directly connected to the connection holes 402.

[0029] Since the connecting post 606 and the connecting hole 402 need to be aligned so that the connecting post 606 can be inserted into the connecting hole 402, a guide groove 403 corresponding to the position of the connecting hole 402 is provided on the inner side of the end of the pipe 4. Under the action of the guide groove 403, when the pipe 4 is inserted, the pipe 4 can only contact the sealing plate 601 when the connecting post 606 is aligned with the guide groove 403. At this time, the pipe 4 is installed in place, and the positions of the connecting hole 402 and the connecting post 606 are also aligned. If the positions of the connecting post 606 and the guide groove 403 are not aligned, one end of the pipe 4 will be blocked by the connecting post 606. At this time, the pipe 4 cannot be installed in place and needs to be adjusted until it can be installed in place.

[0030] Furthermore, a protrusion is provided on the connecting ear 2, and a pull hole is provided at the position of the protrusion; the pull hole is provided to facilitate the insertion of a steel wire rope and connection with the directional drill, while the protrusion can increase the thickness at the position of the pull hole on the connecting ear 2 to improve its strength.

[0031] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-diameter, long-distance horizontal directional drill bit, comprising a tractor tube (1), wherein the head of the tractor tube (1) is an arc-shaped closed structure, and a through connecting lug (2) is welded to the head position, characterized in that: The inner side of the pipe tube (1) is fitted with a pipe (4), and the tail of the pipe tube (1) is fitted with a reinforcing component (5) on the pipe (4). The inside of the pipe tube (1) is fitted with a connecting component (6) that forms a fixed structure with one end of the pipe (4). The connecting assembly (6) includes a sealing disc (601) installed inside the tube (1) by bolts. A motor (602) is installed on the side wall of the sealing disc (601). A rotating shaft (603) rotatably connected to the output shaft of the motor (602) is fixedly mounted on the rotating shaft (602). A turntable (604) is fixedly mounted on the rotating shaft (603). Multiple oblique holes (6041) are opened at the outer edge of the turntable (604). A fixing pin (605) is slidably arranged in the oblique hole (6041). A connecting column (606) is movably connected to the turntable (604) through the oblique hole (6041) and the fixing pin (605). The connecting column (606) is movably connected to the inner side of the sealing disc (601).

2. The large-diameter, long-distance horizontal directional drill bit according to claim 1, characterized in that: A reinforcing steel plate (3) is welded to the inner side of the head of the tube (1). The reinforcing steel plate (3) is welded to the inner side of the connecting ear (2), and the reinforcing steel plate (3) and the connecting ear (2) form a cross structure.

3. The large-diameter, long-distance horizontal directional drill bit according to claim 1, characterized in that: The reinforcement component (5) includes two reinforcement rings (501) installed at the tail of the pipe tube (1) by bolts (502). The inner side of the reinforcement ring (501) is provided with an inner flange (5011), which is fitted into an annular groove (401) opened on the outer wall of the pipe (4).

4. The large-diameter, long-distance horizontal directional drill bit according to claim 1, characterized in that: The inner side of the end of the pipe (4) is provided with a plurality of connecting holes (402) that are adapted to the connecting column (606).

5. The large-diameter, long-distance horizontal directional drill bit according to claim 4, characterized in that: The inner side of the end of the pipe (4) is provided with a guide groove (403) corresponding to the position of the connection hole (402).

6. The large-diameter, long-distance horizontal directional drilling rig according to claim 1, characterized in that: The connecting ear (2) has a protrusion, and a pull hole is provided at the position of the protrusion.

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